Electrodeposition and structural characteristics of intermetallic nickel-tin based coatings

Georgiou, E.P.; Donck, Tom Van der; Célis, Jean-Pierre

doi:10.1080/00202967.2017.1352125

Cited by 10 publications

(12 citation statements)

References 25 publications

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Section: Deposition Of Pure Sn-ni Coatingsmentioning

confidence: 99%

“…This peak is attributed to the metastable phase NiSn which is not listed in the standard equilibrium phase diagram [27] and exhibits a NiAl-type hexagonal structure [28]. The low-intensity peak at 2θ ≈ 80° is attributed to Sn while the other two peaks at 2θ ≈ 48° and 2θ ≈ 95° to the brass substrate [24,27,29]. Sn-Ni alloy coatings with approximately 65 wt.% Sn content formed by the application of electrodeposition demonstrates significant differences in the equilibrium structure [29].…”

Section: Deposition Of Pure Sn-ni Coatingsmentioning

confidence: 99%

Section: Deposition Of Pure Sn-ni Coatingsmentioning

confidence: 99%

“…The surface morphology of pure Sn-Ni deposits is characterized as nodular [29] (see Figure 4), and consisted of spherical grains with various sizes along the surface as depicted in Figure 4b at higher magnification. Sn-Ni alloy coatings with approximately 65 wt.% Sn content formed by the application of electrodeposition demonstrates significant differences in the equilibrium structure [29]. It has been already ascertained from previous studies that electroplating leads to the formation of metastable phases, while the formation of metastable NiSn was related to the increased free energy of formation of the stable two-phase mixture deriving from the high activation energy of the discharging cations due to the high temperature of operation >65 • C [28].…”

Section: Deposition Of Pure Sn-ni Coatingsmentioning

confidence: 99%

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Electrodeposition of Photocatalytic Sn–Ni Matrix Composite Coatings Embedded with Doped TiO2 Particles

et al. 2020

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Direct current electrodeposited Sn–Ni/TiO2 nanostructured coatings were produced by embedding two different doped types of TiO2 particles within the alloy matrix, a commercially available doped carbon-based and doped N,S-TiO2 particles. The structural characteristics of the composite coatings have been correlated with the effect of loading, type of particles in the electrolytic bath, and the applied current density. Regardless of the type of doped particles TiO2, increasing values of applied current density resulted in a reduction of the co-deposition percentage of TiO2 particles and an increase of Tin content into the alloy matrix. The application of low current density values accompanied by a high load of particles in the bath led to the highest codeposition percentage (~3.25 wt.%) achieved in the case of embedding N,S-TiO2 particles. X-ray diffraction data demonstrated that in composite coatings the incorporation of the different types of TiO2 particles in the alloy metal matrix modified significantly the nano-crystalline structure in comparison with the pure coatings. The best photocatalytic behavior under visible irradiation was revealed for the composite coatings with the highest co-deposition percentage of doped N,S-TiO2 particles, that also exhibited enhanced wear resistance and slightly reduced microhardness compared to pure ones.

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Section: Deposition Of Pure Sn-ni Coatingsmentioning

confidence: 99%

Section: Deposition Of Pure Sn-ni Coatingsmentioning

confidence: 99%

Section: Deposition Of Pure Sn-ni Coatingsmentioning

confidence: 99%

Section: Deposition Of Pure Sn-ni Coatingsmentioning

confidence: 99%

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Electrodeposition of Photocatalytic Sn–Ni Matrix Composite Coatings Embedded with Doped TiO2 Particles

et al. 2020

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“…Up until now, several electrodeposited coatings, such as Ni-P [6], Ni-Co [7], Ni-W [8], Ni-Sn [9], Co-Sn [10], Co-W [11], Co-Ni-P [12], etc., have been considered as candidate replacements for hard Cr. The properties of these coatings can be improved by co-depositing with hard particles [13] and/or by refining their layering [14].…”

Section: Introductionmentioning

confidence: 99%

High Performance Accelerated Tests to Evaluate Hard Cr Replacements for Hydraulic Cylinders

et al. 2021

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To prolong the lifetime of hydraulic cylinders, a wear-resistant low-friction surface is required. Until now, hard Cr coatings were the best materials for this. However, in recent years, there has been an increasing pressure on the manufacturing of hard Cr plating and plated products, because of environmental and health hazards. The replacement of these coatings by alternatives has not been highly successful yet, because it requires extensive component testing, which is costly and time-consuming and thus not appropriate for material development. For this reason, there is a high need to develop tribological methods that simulate hydraulic cylinders’ component-testing closely. In addition, these new methods should also provide additional information (e.g., friction evolution) that can assist in the further development and optimization of alternative coatings. Having the above in mind and building on an existing method from the American Society for Testing and Materials (ASTM G133), a new test method that allows users to test directly on hydraulic cylinders was developed. This method can provide a relative ranking of both the wear resistance and frictional performance of alternative coatings in direct comparison to state-of-the-art hard Cr. Importantly, the method is repeatable and has a much shorter test duration than full-scale component tests, thereby accelerating material development significantly.

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Preparation and wear assessment of ultrasonic electrodeposited Ni–TiN thin films

Xia

Yang

Cui

et al. 2018

Ceramics International

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Electrodeposition and structural characteristics of intermetallic nickel-tin based coatings

Cited by 10 publications

References 25 publications

Electrodeposition of Photocatalytic Sn–Ni Matrix Composite Coatings Embedded with Doped TiO2 Particles

Electrodeposition of Photocatalytic Sn–Ni Matrix Composite Coatings Embedded with Doped TiO2 Particles

High Performance Accelerated Tests to Evaluate Hard Cr Replacements for Hydraulic Cylinders

Preparation and wear assessment of ultrasonic electrodeposited Ni–TiN thin films

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